what is the most abrasion resistant wire rope in stock

In selecting the right steel wire rope, it is important to determine how important the various properties are in relation to the application and then to assign priorities to these. It is also important to be aware of the relevant standards and regulations. If you are in any doubt, please contact our sales consultants or our Technical Department.

The tensile strength of the steel wire rope depends on the rope’s dimensions, the tensile strength of the wires and the construction. The minimum guaranteed tensile strength for the different kinds of rope is shown in the Randers Reb product catalogue.

The design of the steel wire rope does not significantly affect the tensile strength (up to approx. 5%). A change of core from fibre to steel makes slightly more difference (approx. 10%). The greatest change is achieved by changing the dimensions, usage of Compacted steel wire ropes or tensile strength of the wires (see also fig. 28).

It is often required that the steel wire rope must have a specific SWL value (Safe Working Load), also known as a WLL value (Working Load Limit). This means the steel wire rope’s tensile strength divided by the safety factor required for the relevant application.

Steel wire ropes with thick outer wires (e.g. 6x7 Standard or 6x19 Seale) provide good abrasion resistance. Lang lay ropes provide better abrasion resistance than regular lay steel wire ropes (see also fig. 28). Abrasion resistance can also be increased by using wires with greater tensile strength.

The greater the number of wires in the strand, the greater the bending fatique resistance and flexibility. Lang lay ropes provide better bending fatique resistance than regular lay steel wire ropes. Bending fatique resistance can also be increased by using pre-formed steel wire ropes (see also fig. 28).

Galvanised and rustproof wires provide excellent protection against corrosion. Lubrication with special types of grease or oil will also increase resistance to corrosion. If the steel wire rope is subjected to significant corrosive influences, it is recommended that strands with thick outer wires are used.

Steel wire ropes with fewer wires (e.g. 1x7 Standard and 1x19 Standard) are subject to the least elongation (have the greatest elasticity modulus). This type of steel wire rope is ideally suited for guy ropes, but is not suitable to be run over sheaves/blocks. If only a small degree of elongation when running over sheaves is required, 6x7 or 6x19 steel wire rope should be used, in each case with a steel core or with certain special constructions. For larger dimensions, 6x36 steel wire rope with a steel core can also be used (see also Elongation and Pre-stretching, page 8-28).

Standard 6-lay and 8-lay steel wire ropes will rotate when they hang free and carry a load. Regular lay steel wire rope provides greater resistance to rotation than lang lay steel wire rope. A steel wire rope with a steel core rotates less than a steel wire rope with a fibre core. The type of rope that provides greatest resistance to rotation is, as the name suggests, low-rotation and rotation-resistant steel wire rope (special constructions, see also ”Low-Rotation and Rotation-Resistant Steel Wire Rope”, page 8-10).

A steel core provides better support for the strands than a fibre core, which is why the risk of flattening is less in a steel wire rope with a steel core. Strands with fewer, thicker wires have greater resistance to flattening/crushing. Also, a 6-lay steel wire rope has greater crushing resistance than an 8-lay rope (see also fig. 28).

Vibrations, from wherever they might come, send shock waves through the steel wire rope, which will be absorbed by the steel wire rope at some point, and in some cases they may cause localised destruction of the steel wire rope (not necessarily on the outside). This may, for example, be at places where the steel wire rope comes into contact with a sheaf/block, or enters the drum, and by the end terminals. In general, those steel wire ropes with the greatest flexibility also have the greatest vibration resistance.

Changes in the tension of a steel wire rope, depending on the size and frequency, will reduce the rope’s life expectancy. In general, steel wire ropes with the greatest flexibility can cope better with intermittent loading. Great care should be taken in the use of end terminals or fittings, as their pulsation resistance is equally as important as the selection of the right steel wire rope.

Lang lay steel wire ropes are the ones most suited to running over sheaves and are the most durable, but if they are to be used, three things must be observed:

The reason for Lang lay steel wire ropes’ excellent qualities of abrasion resistance and pliability is that the wires are affected/loaded in a different way and have a larger load-bearing surface than a regular lay steel wire rope (see fig. 29). Note that the largest wearing surface is on the Lang lay steel wire rope.

With each application, your choices of wire ropes can be many. How do you know which one works best for you? Ropes include a combination of characteristics that give them specific performance abilities. Before you choose, it pays to look closely at each rope’s special characteristics.

All wire ropes feature design characteristic tradeoffs. In most cases, a wire rope cannot increase both fatigue resistance and abrasion resistance. For example, when you increase fatigue resistance by selecting a rope with more wires, the rope will have less abrasion resistance because of its greater number of smaller outer wires. When you need wire rope with greater abrasion resistance, one choice is a rope with fewer (and larger) outer wires to reduce the effects of surface wear. But that means the rope’s fatigue resistance will decrease. That’s why you need to choose your wire rope like you would any other machine. Very carefully. You must consider all operating conditions and rope characteristics.

How do you choose the wire rope that’s best suited for your job? Following are the most common characteristics to be considered when selecting a rope for an application.

Wire rope strength is usually measured in tons of 2,000 lbs. In published material, wire rope strength is shown as minimum breaking force (MBF) or nominal (catalog) strength. These refer to calculated strength figures that have been accepted by the wire rope industry. When placed under tension on a test device, a new rope should break at a figure equal to – or higher than – the minimum breaking force shown for that rope. Certain standards allow for an acceptance strength that is 97.5% of the nominal strength to allow for testing variables. The values in this handbook apply to new, unused rope. A rope should never operate at – or near – the minimum breaking force. During its useful life, a rope loses strength gradually due to natural causes such as surface wear and metal fatigue.

Fatigue resistance involves metal fatigue of the wires that make up a rope. To have high fatigue resistance, wires must be capable of bending repeatedly under stress – for example, a rope passing over a sheave.

Increased fatigue resistance is achieved in a rope design by using a large number of wires. It involves both the basic metallurgy and the diameters of wires. In general, a rope made of many wires will have greater fatigue resistance than a same-size rope made of fewer, larger wires because smaller wires have greater ability to bend as the rope passes over sheaves or around drums. To reduce the effects of fatigue, ropes must never bend over sheaves or drums with a diameter so small as to bend wires excessively. There are precise recommendations for sheave and drum sizes to properly accommodate all sizes and types of ropes.

Every rope is subject to metal fatigue from bending stress while in operation, and therefore the rope’s strength gradually diminishes as the rope is used.

Crushing is the effect of external pressure on a rope, which damages it by distorting the cross-section shape of the rope, its strands or core – or all three. Crushing resistance therefore is a rope’s ability to withstand or resist external forces, and is a term generally used to express comparison between ropes. When a rope is damaged by crushing, the wires, strands and core are prevented from moving and adjusting normally during operation. In general, IWRC ropes are more crush resistant than fiber core ropes. Regular lay ropes are more crush resistant than lang lay ropes. Six strand ropes have greater crush resistance than 8 strand ropes or 19 strand ropes. Flex-X® ropes are more crush resistant than standard round-strand ropes.

Metal loss refers to the actual wearing away of metal from the outer wires of a rope, and metal deformation is the changing of the shape of outer wires of a rope. In general, resistance to metal loss by abrasion (usually called “abrasion resistance”) refers to a rope’s ability to withstand metal being worn away along its exterior. This reduces strength of a rope. The most common form of metal deformation is generally called “peening”– since outside wires of a peened rope appear to have been “hammered” along their exposed surface. Peening usually occurs on drums, caused by rope-to-rope contact during spooling of the rope on the drum. It may also occur on sheaves. Peening causes metal fatigue, which in turn may cause wire failure. The hammering – which causes the metal of the wire to flow into a new shape – realigns the grain structure of the metal, thereby affecting its fatigue resistance. The out-of-round shape also impairs wire movement when the rope bends.

When a load is placed on a rope, torque is created within the rope as wires and strands try to straighten out. This is normal and the rope is designed to operate with this load-induced torque. However, this torque can cause loads to rotate. Load-induced torque can be reduced by specially designed rotation resistant ropes. In standard 6 and 8 strand ropes, the torques produced by the outer strands and the IWRC is in the same direction and add together. In rotation resistant ropes, the lay of the outer strands is in the opposite direction to the lay of the inner strands, thus the torques produced are in opposite directions and the torques subtract from each other. Depending upon your application, other wire rope characteristics such as stability, bendability or reserve strength may need to be considered.

Wire rope is a complex mechanical device that has many moving parts, all working in tandem to help support and move an object or load. In the lifting and rigging industries, wire rope is attached to a crane or hoist and fitted with swivels, shackles or hooks to attach to a load and move it in a controlled matter. It can also be used to lift and lower elevators, or as a means of support for suspension bridges or towers.

A wire rope is a machine with many moving parts. It has a unique design consisting of steel wires that form individual strands laid in a helical pattern around a center core.

Wire rope is a preferred lifting device for many reasons. Its unique design consists of multiple steel wires that form individual strands laid in a helical pattern around a core. This structure provides strength, flexibility and the ability to handle bending stresses. Different configurations of the material, wire, and strand structure will provide different benefits for the specific lifting application, including:

However, selecting the proper wire rope for your lifting application requires some careful thought. Our goal is to help you understand the components of a wire rope, the construction of wire rope and the different types of wire rope and what they might be used for. This will allow you to select the best performing and longest-lasting wire rope for the job at hand.

A finished wire rope is comprised of individual wires, which make up individual strands, which are then laid in a helical pattern around a synthetic or steel core.

A wire rope is a machine with many moving parts. From childhood, many of us have been conditioned to think of a machine as some device with gears, shafts, belts, cams and assorted whirring parts. Yet, by the rules of physics, an ordinary pry bar is a simple machine, even though it has only one part.

A wire rope is, in reality, a very complicated machine. A typical 6 by 25 rope has 150 wires in its outer strands, all of which move independently and together in a very complicated pattern around the core as the rope bends. Clearances between wires and strands are balanced when a rope is designed so that proper bearing clearances will exist to permit internal movement and adjustment of wires and strands when the rope has to bend. These clearances will vary as bending occurs, but are of the same range as the clearances found in automobile engine bearings.

Understanding and accepting the “machine idea” gives a rope user a greater respect for rope, and enables them to obtain better performance and longer useful life from rope applications. Wire rope is a complex piece of mechanical machinery with a number of different specifications and properties that can affect its performance and service life.

A finished wire rope is comprised of individual wires, which make up individual strands, which are then laid in a helical pattern around a synthetic or steel core. There are four basic components that make up the design of a finished wire rope:

Wires are the smallest component of wire rope and they make up the individual strands in the rope. Wires can be made from a variety of metal materials including steel, iron, stainless steel, monel, and bronze. The wires can be manufactured in a variety of grades that relate to the strength, resistance to wear, fatigue resistance, corrosion resistance, and curve of the wire rope.

Strands of wire rope consist of two or more wires arranged and twisted in a specific arrangement. The individual strands are then laid in a helical pattern around the core of the rope. Strands made of larger diameter wires are more resistant to abrasion, while strands made of smaller diameter wires are more flexible.

The core of a wire rope runs through the center of the rope and supports the strands and helps to maintain their relative position under loading and bending stresses. Cores can be made from a number of different materials including natural or synthetic fibers and steel.

The construction of wire rope falls into one of these strand pattern classifications. The number of layers of wires, the number of wires per layer, and the size of the wires per layer all affect the strand pattern type. Wire rope can be constructed using one of the following patterns, or can be constructed using two or more of the patterns below.

Filler Wire – Two layers of uniform-size wire around a center with the inner layer having half the number of wires as the outer layer. Small filler wires, equal to the number in the inner layer, are laid in valleys of the inner wire.

Seale – Two layers of wires around a center with the same number of wires in each layer. All wires in each layer are the same diameter. The large outer wires rest in the valleys between the smaller inner wires.

Warrington – Two layers of wires around a center with one diameter of wire in the inner layer, and two diameters of wire alternating large and small in the outer later. The larger outer-layer wires rest in the valleys,and the smaller ones on the crowns of the inner layer.

Remember, wire rope is a complex piece of mechanical machinery. There are a number of different specifications and properties that can affect the performance and service life of wire rope. Consider the following when specifying the best type of wire rope for your lifting application:

When you select a piece of rope that is resistant to one property, you will most likely have a trade-off that affects another property. For example, a fiber core rope will be more flexible, but may have less crushing resistance. A rope with larger diameter wires will be more abrasion resistant, but will offer less fatigue resistance.

A rope with larger diameter wires will be more crush resistant and abrasion resistant, while a rope with smaller diameter wires will be more bendable and fatigue resistant.

On a preformed wire rope, the strands and wires are formed during the manufacturing process to the helical shape that they will take in a finished wire rope. Preformed rope can be advantageous in certain applications where it needs to spool more uniformly on a drum, needs greater flexibility, or requires more fatigue-resistance when bending.

Direction and type of lay refer to the way the wires are laid to form a strand (either right or left) and how the strands are laid around the core (regular lay, lang lay, or alternate lay).

Regular Lay – The wires line up with the axis of the rope. The direction of the wire lay in the strand is opposite to the direction of the strand lay. Regular lay ropes are more resistant to crushing forces, are more naturally rotation-resistant, and also spool better in a drum than lang lay ropes.

Lang Lay – The wires form an angle with the axis of the rope. The wire lay and strand lay around the core in the same direction. Lang Lay ropes have a greater fatigue-resistance and are more resistant to abrasion.

A fiber core can be made of natural or synthetic polypropylene fibers. Fiber cores offer greater elasticity than a steel core but are more susceptible to crushing and not recommended for high heat environments.

A steel core can be an independent wire rope or an individual strand. Steel cores are best suited for applications where a fiber core may not provide adequate support, or in an operating environment where temperatures could exceed 180° F.

The classifications of wire rope provide the total number of strands, as well as a nominal or exact number of wires in each strand. These are general classifications and may or may not reflect the actual construction of the strands. However, all wire ropes of the same size and wire grade in each classification will have the same strength and weight ratings and usually the same pricing.

Some types of wire rope, especially lang lay wire rope, are more susceptible to rotation when under load. Rotation resistant wire rope is designed to resist twisting, spinning, or rotating and can be used in a single line or multi-part system. Special care must be taken when handling, unreeling, and installing rotation resistant wire rope. Improper handling or spooling can introduce twist into the rope which can cause uncontrolled rotation.

Compacted strand wire rope is manufactured using strands that have been compacted, reducing the outer diameter of the entire strand, by means of passing through a die or rollers. This process occurs prior to closing of the rope.This process flattens the surface of the outer wires in the strand, but also increases the density of the strand. This results in a smoother outer surface and increases the strength compared to comparable round wire rope (comparing same diameter and classification), while also helping to extend the surface life due to increased wear resistance.

A swaged wire rope differs from a compacted strand wire rope, in that a swaged wire rope’s diameter is compacted, or reduced, by a rotary swager machine after the wire rope has been closed. A swaged wire rope can be manufactured using round or compacted strands.The advantages of a swaged wire rope are that they are more resistant to wear, have better crushing resistance, and high strength compared to a round strand wire rope of equal diameter and classification. However, a swaged wire rope may have less bending fatigue resistance.

A plastic coating can be applied to the exterior surface of a wire rope to provide protection against abrasion, wear, and other environmental factors that may cause corrosion. However, because you can’t see the individual strands and wires underneath the plastic coating, they can be difficult to inspect.

Plastic filled wire ropes are impregnated with a matrix of plastic where the internal spaces between the strands and wires are filled. Plastic filling helps to improve bending fatigue by reducing the wear internally and externally. Plastic filled wire ropes are used for demanding lifting applications.

This type of wire rope uses an Independent Wire Rope Core (IWRC) that is either filled with plastic or coated in plastic to reduce internal wear and increase bending fatigue life.

Wire ropes should have one dedicated purpose. They should not be utilized interchangeably because different styles and materials are attributed to specific abilities and properties. It can be extremely dangerous to use wire ropes that aren’t designed for your specific application. An accident caused by improper use of wire ropes is detrimental to business because production must be halted while damage and injuries are assessed, ropes are replaced, and items are fixed. Safety should be valued above all else. Continue reading for more information on the most commonly used wire ropes and what you should be looking for when making your selection.

You have a plethora of options when choosing your wire rope. In order to determine the type of rope you need, you need to identify your specific needs. These are the things you need to know:Strength rating

A lot of this may seem overwhelming but that’s where we come in. AtSilver State Wire Rope and Rigging, our talented staff of professionals can help simplify the wire rope selection process. We will help you identify your needs and recommend the best wire ropes for your specific application.Contact ustoday.

More wires per strand than other wire rope provides the flexibility required for repeat bending over drums and pulleys and the stainless steel wire rope withstands outdoor and washdown applications.

This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.

At Carl Stahl Sava Industries, our steel mechanical cable choices include 304 and 316 stainless steel and galvanized steel cable. Sava is both a wire rope supplier and a wire rope manufacturer that is able to work withexotic steel alternatives upon request, both stainless steel and galvanized steel mechanical cable offer distinct benefits, depending upon the application. Read on to learn the differences between galvanized vs. stainless steel wire ropeand determine which custom wire rope will better serve your application requirements.

One of the greatest benefits of stainless steel wire rope is that it is suitable for nearly any application. While it may have a slightly higher cost than galvanized steel cable, stainless steel cable provides customers with greater ROI and maintains its high-strength qualities over its lifespan under most conditions. While not as strong as tungsten or tolerant of excessive temperatures, stainless steel mechanical wire rope is an incredibly effective cable construction material.

Stainless steel has high corrosion resistance due to it being treated with chromium. This additional element makes stainless steel suitable for use in moist environments, even when harmful salty conditions are present. Specifically in marine environments, for instance, stainless steel wire rope can be used for years without corroding. And in the medical devices field, stainless steel is commonly the metal of choice for many medical device instruments like endoscopes because of its high sanitization level and durability over many cycles makes it ideal.

Galvanized steel is steel that has been dipped in a zinc coating, which gives it good corrosion-resistant qualities. But even with the addition of zinc, galvanized wire rope’s strength is weaker than stainless steel because of the presence of chromium, making the cable stronger and more tolerant of corrosive elements like saltwater. Galvanized cable will rust and corrode if salty wet conditions are present. And like stainless steel, galvanized steel cable ends will also weld together if they make contact with one another.

Galvanized steel cable is often found in industrial applications, since items may brush up against the wire rope in the field, which again, are environmental conditions that galvanized steel tolerates quite well over time. For this and other reasons, Galvanized steel wire rope works exceptionally well in aerospace applications.

Stainless steel wire rope is a cost-effective solution that works across a range of applications, is impervious to salty wetness and is stronger than galvanized steel cable. But galvanized steel wire rope is corrosion-resistant, except when salt is present and tolerates contact with itself far better than stainless steel cable.

It"s important to remember that since each application has unique needs, these comparisons are general guidelines. Contact Sava today to discuss your project, so we can help you determine whether a stainless steel wire rope or galvanized steel wire rope is best for your cable manufacturing needs.

New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller"s listing for full details.See all condition definitionsopens in a new window or tab

As specialist for manufacturing quality steel wire ropes over 20 years, our company can supply strong, durable and reliable ropes that capable to minimize your downtime and maximize cost effectiveness. Decades of experience we owned make us know clearly the work you do and capable to provide professional guidance.

We select the best steel or stainless steel as raw material for wire rope manufacturing. Our products are manufactured under strict quality managements and test before they leave the factory.

Our engineers can provide professional advice about picking up optimal steel wire ropes for their application, installation guidance to ensure maximum return in their wire rope system.

As one of the largest manufacturers in China, we can purchase better materials at a lower price. Then we transmit this saving to our customers by providing the most competitive price.

If you are going to pick up steel wire ropes that suit your project perfectly, you must have an ideal about the construction about them. Our company can supply bright wire rope, galvanized wire rope, stainless steel wire rope, compacted wire rope, rotation resistant wire ropes, mining wire rope, elevator wire rope, crane wire rope and gas & oilfield wire ropes. Here are some details to solve the problem that may puzzle you whether you are browsing the web or picking up steel wire ropes.

Bright steel wire ropes mean no surface treatment is applied to the rope. Therefore, they have the lower price among these three wire ropes. Generally, they are fully lubricated to protect the rope from rust and corrosion.

Galvanized steel wire ropes feature compressed zinc coating for providing excellent corrosion resistance. With higher break strength yet lower price than stainless steel, galvanized steel wire ropes are widely used in general engineering applications such as winches and security ropes.

Stainless steel wire ropes, made of quality 304, 305, 316 steels, are the most corrosive type for marine environments and other places subjected to salt water spray. Meanwhile, bright and shiny appearance can be maintained for years rather than dull as galvanized steel wire ropes.

Steel wire ropes are composed of multiple strands of individual wires that surrounding a wire or fiber center to form a combination with excellent fatigue and abrasion resistance. These wires and strands are wound in different directions to from different lay types as follows:

Beside above lay types, alternative lay ropes which combine regular lay and lang lay together and ideal for boom hoist and winch lines, can also be supplied as your request.

Two main methods about seizing steel wire ropes in conjunction with soft or annealing wire or strands to protect cut ends of the ropes form loosening.

Fiber rope and wire rope are widely used across the groundwater industry. Fiber rope is more commonly used in manual hoisting, such as raising up or lowering down tools. Wire rope is commonly used for mechanical hoisting operations.

The improper use of fiber rope or wire rope can result in serious incidents involving property damage, injuries, and death. Using the ropes as intended within their safe working load and maintaining them in good condition are critical in preventing rope failures.

Both types of rope include a combination of characteristics that give them certain performance traits depending on design, materials, and composition.

Wire rope is made of steel wires laid together to form a strand. These strands are laid together to form a rope, usually around a central core of either fiber or wire.

The number of strands, number of wires per strand, type of material, and nature of the core depend on the intended purpose of the wire rope. Wire rope that has many smaller wires and strands is more flexible than rope with larger-diameter wires and fewer strands. Wire rope used with sheaves and drums should have many strands to be flexible enough to bend around the sheaves and drums.

Wire ropes are classified by grouping the strands according to the number of wires per strand. The number of wires and the pattern defines the rope’s characteristics.

For example, a 6 × 7 rope indicates the rope is comprised of six strands and each individual strand is comprised of seven wires. This particular rope has large wires and is not very flexible but has good abrasion-resistant qualities. Whereas, a 6 × 19 rope has 19 wires per strand and thus is more flexible.

The more wires in a strand, the more flexible the wire rope. Likewise, the more strands in the rope, the more flexible the rope. However, the more strands in a rope and more wires in a strand, the less abrasion resistant.

Other important requirements to consider when selecting a wire rope are the breaking strength and “safe working load.” These values can be found with the use of a chart.

Most hoisting jobs use a safe working load based on a 5:1 safety factor of the wire rope’s breaking strength. However, this safety factor should be even higher if there is a possibility of injury or death from the rope breaking. For example, elevators are based on a 20:1 safety factor. Critical lifts with a danger to personnel should be calculated on a 10:1 safety factor.

Wire rope inspections are important checks on any type of rigging equipment. Wear, metal fatigue, abrasion, corrosion, kinks, and improper reeving are more important in dictating the life of a wire rope—more so than its breaking strength when new. Therefore, wire rope should be regularly inspected in accordance with OSHA and industry standards.

The frequency of inspections depends on the service conditions. Slings should be inspected each day before being used. Wire rope in continuous service or severe conditions should be inspected at least weekly and also observed during normal operation. For most other applications, wire rope should be inspected at least monthly.

Broken wires: Removing a wire rope from service due to broken wires depends on how the particular rope is being used. Finding one broken wire (or several widely spread) is usually not a problem. Regular breaks are a cause for concern and require a closer inspection. General guidelines for rope replacement due to broken wires are as follows:

Running wire ropes: Six randomly distributed broken wires in one rope lay or three broken wires in one strand in one rope lay, where a rope lay is the length along the rope in which one strand makes a complete revolution around the rope.

Pendants or standing wire ropes: More than two broken wires in one rope lay located in the rope beyond end connections or more than one broken wire in a rope lay located at an end connection. Slings: Ten randomly distributed broken wires in one rope lay or five broken wires in one strand in one rope lay.

Rotation-resistant ropes: Two randomly distributed broken wires in six rope diameters or four randomly distributed broken wires in 30 rope diameters. Valley breaks:Wire ropes with any wire breaks in between two adjoining strands should be removed from service.

Abrasion:Wire rope winding over drums or through sheaves will wear. The rope should be replaced if the outer wire exceeds one-third of the original diameter.

Crushed strands: This condition is a result of too many layers of rope wrapped around a drum. There should be no more than two layers of wire rope on the drum, especially if the rope is a type with many small wires (such as 6 × 37). Crushing also occurs by cross winding, which is a result of poor winding procedures when the rope is wound in a pile in the middle of a drum.

Corrosion: This problem is difficult to evaluate and is also much more serious than normal wear. Corrosion will often start inside the rope before it shows on the outside. A lack of lubrication is usually the cause. Wire pitting or severe rusting should be cause for immediate replacement.

Kinks: Kinks are permanent distortions. After a wire rope is kinked, it is impossible to straighten the rope enough to return it to its original strength. If a rope cannot be unkinked by hand, it should be removed from service.

Electric arc:Wire rope that has been inadvertently (or purposely) used as a ground in welding or has been in contact with a live power line will have fused or annealed wires, and must be removed from service.

Metal fatigue: This is usually caused by bending stress from repeated passes over sheaves, or from vibration such as crane pendants. Fatigue fractures can be external or internal. A larger sheave or drum size, or using a more flexible rope, may increase the rope life.

Diameter reduction: Any noticeable reduction in diameter is a serious deterioration problem. A wire rope is measured across its diameter at its widest point. Diameter reduction could be caused by one fault or a combination of faults. Wire ropes should be replaced when the reduction in diameter is more than 5% from the nominal diameter.

Wire rope stretch: Any new wire rope will stretch when the initial load is applied. After the initial stretch and a slight stretching over time during normal wear, the rope will begin to stretch at a quicker rate, which means it is approaching time for replacement.

Bird caging: This is a torsional imbalance, which is a result of mistreatment such as pulling rope through tight sheaves, being wound on too small a drum, or sudden stops.

A wire rope is lubricated during the manufacturing process. This provides the rope with protection for a reasonable time if stored under proper conditions. When the wire rope is in service, the initial lubrication will not be enough to last the lifetime of the rope. Therefore, it is usually necessary to apply a lubricant to a wire rope under working conditions. A light mineral oil can be used for lubrication. Never use old crankcase oil.

Fiber ropes are preferred for some rigging applications because they are more pliant. However, they should be used only on light loads and must not be used on objects that have sharp edges capable of cutting the rope. Fiber ropes should also not be used where they will be exposed to high temperatures, severe abrasion, or acids.

The choice of rope depends on its application. Manila is a natural fiber and has relatively high elasticity, strength, and resistance to wear and deterioration. Manila rope is generally the most common natural fiber rope used because of its quality and relative strength.

The principal synthetic fiber used for rope is nylon, which has a tensile strength nearly three times that of manila. The advantages of nylon rope are it is waterproof and has the ability to stretch, absorb shocks, and resume its normal length. Nylon also has better resistance against abrasion, rot, decay, and fungus growth as compared to natural fibers.

Avoid dragging rope through sand or dirt or pulling over sharp edges. Sand or grit between the fibers of the rope cuts the fibers and reduces its strength.

The outside appearance of fiber rope is not a good indication of its internal condition. The rope softens with use. Dampness, heavy strain, fraying and breaking of strands, and chafing on rough edges all weaken the rope considerably.

Overloading a rope may cause it to break. For this reason, fiber ropes should be inspected at regular intervals to determine their condition. Untwist the strands slightly to open the rope so the inside can be examined.

Mildewed rope has a musty odor and the inner fibers of the strands have a dark, stained appearance. Broken strands or broken yarns ordinarily are easy to identify. Dirt and sawdustlike material inside the rope, caused by chafing, indicate damage. In rope having a central core, the core should not break away in small pieces upon examination. If this happens, it indicates the rope has been overstrained.

To prevent rope failures and minimize deterioration and damage: select the right rope for the job, inspect regularly, use as intended, and properly store and maintain.

To help meet your professional needs, this article covers skills and competencies found in DACUM charts for drillers and pump installers. DO refers to the drilling chart. The letter and number immediately following is the skill on the chart covered by the article. This article covers:

In rigging, we all know that the setup is only as strong as its weakest link. Any failure is a potentially dangerous situation that puts your entire operation in jeopardy. Every component must be relentlessly reliable. Synthetic rope is one such tool that bears heavy responsibility. While incredibly strong and durable, it often immediately supports a load; if it were to fail, the results would be catastrophic.

You will likely never seeused in a rig as they are weaker and less durable than their synthetic counterparts. With this in mind, let’s discuss the advantages of synthetic rope.

Synthetic rope is made from nylon, polyester, or polypropylene fibers. These ropes can be made using one or a combination of these synthetic fibers. Much like a natural rope, these fibers are drawn out into strands and then woven together. The end result is a durable, strong rope that can bear markedly more weight and tension than its natural counterpart.

Because of the materials used, synthetic rope is better able to withstand friction, making it more durable. It should be noted that how much you use the rope and its length of service will directly affect how long it lasts. Sporadic use could see it surviving for up to 10 years, whereas heavy use will require replacement every year or two. Synthetic rope is great for outdoor uses, as it is resistant to rot and mildew that can arise from exposure to moisture.

Synthetic rope is useful for a host of additional purposes. Its resistance to moisture makes it ideal for use in marine applications, but it has various advantages outside of the rigging sphere. It serves as an excellent climbing rope due to its abrasion resistance – it can handle rough edges of the terrain without fail. This is also what makes it perfect for rigging in film and theater. Where creative problems often require creative solutions, crews know they can rely on these ropes to hold the scene together. Synthetic rope can also be used effectively in towing and hauling applications.

has been a leader in wire rope and rigging supplies in the Gulf Coast region since 1966. We provide quality supplies and reliable service to each one of our clients so they can meet the tough demands of the industry with confidence and excellence. We are happy to share our decades of experience to help you find the best solution for whatever undertaking you have in front of you. From synthetic rope and slings to wire rope and chains, we have a comprehensive product offering to completely outfit your rig.today to level up your operation.

Wire rope is arguably the most important asset that arigging equipment providercan supply. It forms the backbone of every operation, helping to execute every lift and move heavy loads with precision and security. Withoutwire rope, the rigging, overhead lifting and securement industries couldn’t meet demands.

For these reasons, it is absolutely crucial to make sure wire rope is properly maintained.Storing wire ropesafely and intentionally will help lengthen its working life and improve the safety of your daily operations. Keep reading to discover the key considerations and tips for storing wire rope.

The best method of storing wire rope is on a reel. This helps to maintain the shape and function of the rope over time by avoiding kinks and tangles, which can damage the integrity of the rope and reduce its safety and usefulness. Reels also help centralize wire rope into space-efficient units that can be transported and even stacked.

Once spooled onto a reel, it will be simple and easy to remove the desired length of wire rope when needed. Whether you are working with drilling rigs, cranes or winches, we recommend that you have your wire rope installed and removedby an  experienced professional.

Wire rope is a vital piece of equipment, and it should be stored as such. Water, salt, dust, steam, temperature extremes and chemical fumes canwreak havocon the structure and strength of wire rope. Therefore, store your wire rope supply in a cool, dry, covered, and well-ventilated place. An  indoor location is best, but if you must store wire rope outdoors, make sure it is covered with waterproof material.

Additionally, make sure no part of the rope is touching the ground, and that the base of the wire rope reel is elevated at least a few inches in case of flooding. Water immersion can cause the wire rope to corrode and its lubricant to wear off. . When in doubt, check with your rigging equipment provider about wire rope spooling to ensure it is done right.

Inspections of various pieces of rigging equipment are required by law on a regular basis – and wire rope is no exception. Work with your rigging equipment provider to have your wire rope inspected if it has been stored for an extended period of time. A full-scalerigging inspectioncan also help you determine where and how to store your wire rope on the front-end of a project. A qualified rigging equipment inspector will be able to address the quality and condition of all your rigging and lifting gear, furnishing detailed reports on their findings.

At Southwest Wire Rope, our team has been serving the needs of the rigging, overhead lifting and securement industries with unwavering excellence for 56 years. If you’re searching for a rigging equipment provider, wire rope spooling and storage help or a certified inspector, turn to the professionals at Southwest Wire Rope. Our experienced team can provide insights and recommendations for the type of wire rope, end fittings, hardware, and operational procedures that best suit your facilities and equipment. We look forward to answering your questions and forming a lasting partnership. For more information, browse ourservice offering.

Over the past 56 years, the rigging, overhead lifting and securement industries have changed dramatically. With the advancement of technology and digitization of data, alongside more capacity and power in today’s machines, the industry has reached a new level. Increased demand andeconomic pressuresare pushing today’s rigging operations harder than ever before, and around-the-clock productivity has become the norm.

While the past six decades have ushered in sweeping changes, some things have remained the same. For that entire time, Southwest Wire Rope has remained a stalwartrigging equipment providerwith a reputation for quality and service. We’ve been providing rigging inspections, testing, and the strongest wire rope on the market for years – and we have no intention of slowing down. Here’s how we continue to uphold and define industry standards.

To ensure that each facility and piece of operating equipment is up to code, rigging inspections are required by regulators. At Southwest Wire Rope, we employ a team ofcertified inspectorsthat can investigate every aspect of a rig, from the heavy machinery down to the shackles. With attention to detail cultivated by hundreds of years of combined rigging experience, our inspection team offers industry-leading guidance and professional recommendations. Reporting fromTESSALinkasset management software adds to our comprehensive service offering.

In addition to routine inspections, the Southwest Wire Rope team also performed destructive (break) testing of up to 1.7 million pounds from two separate locations. Need field spooling? We provide on-site installation and removal of wire and synthetic ropes on drilling rigs, cranes and winches. Through our steadfast commitment to raising the bar, we make sure our clients are meeting and exceeding all industry requirements.

At our core, we are rigging equipment providers, and we strive to strengthen our offerings and expertise on a daily basis. In 1983, we introduced our trademark proprietary brand of wire rope to the market, characterized by an iconic gold strand. Nearly 40 years later, “Gold Strand” wire rope is still recognized as the strongest and most reliable wire rope on the market.

Additionally, we have acomplete offeringof wire rope fittings, synthetic and round slings, chains, and other rigging hardware. We pride ourselves on being experts in the rigging equipment space, providing not only the tools to get the job done, but also the guidance to do it right.

But we don’t stop there. If one of our clients needs a skip pan, spreader bar, or other custom lifting device, we maintain a large inventory of heavy equipment for rent. We continue to reinforce excellence in all we do through the provision and outfitting of cutting-edge equipment solutions.

Finally, we continue to sharpen our skills and cement our place in the rigging industry by defending our reputation as the top rigging equipment servicer and provider in the industry. With every rigging inspection we complete and every client request we field, we seize the opportunity to build upon decades of excellence and provide exceptional products and services. Our team never shrinks back from the challenge. On the contrary, we relish the ability to enter new projects with the weight of a 56-year reputation on our shoulders. The responsibility to uphold and further this legacy informs everything we do – from the largest repairs, to the smallest reports.

Our team has been serving the needs of the rigging, overhead lifting, and securement industries with an unwavering dedication to quality and excellence for over half a century. If you’re searching for a rigging equipment supplier, or need your system inspected by a certified inspector, turn to the professionals at Southwest Wire Rope. Our experienced team can provide insights and recommendations for the type of wire rope, end fittings, hardware, and operational procedures that best suit your facilities and equipment. We look forward to answering your questions and forming a lasting partnership. For more information, browse ourservice offering.

The commodity that “holds up” the rigging, lifting, and overhead securement industries is indisputably wire rope. Combining strength with flexibility, wire rope helps operations of all sizes move heavy loads where they need to go with safety and ease. Without enough properly tested and verified wire rope on hand, the output and productivity of the entire plant can grind to a standstill.

Because every project has different requirements, various types of wire rope are designed and fabricated to serve different purposes. With a variety of orientations, strengths, and load capacities, it’s important to know exactly which variety works best for your job. Here’s a breakdown of the major categories.

The “class” of wire rope refers to the number of wires that compose a strand, as well as how many strands surround the core. For example, 6×31 FC wire rope consists of 6 strands containing 31 wires each, which are wrapped around a fiber core.

General purpose wire rope– the variety most commonly used for daily rigging operations such as lifting, overhead securement, pulling, and establishing tension – most often contains six strands and an Independent Wire Rope Core (IWRC). Each of these strands can contain anywhere from 16 to 49 wires, with more wires increasing the flexibility of the rope.

General purpose wire rope can range in diameter from ¼ inch to 6 inches, with larger diameter  ropes having breaking strengths of hundreds or even thousands of tons. For a detailedwire rope strength chart, consult our cataloghere.

Most cranes and some overhead lifting and securement devices require specialized wire rope that prevents the load from rotating. This is often achieved by having layers of compacted strands, oriented in a tightly-knit pattern around a core and layed in alternating directions. For example, the Oliveira NR Maxipact PPI contains 18 outer strands, forming wire rope that can be effectively implemented in a non-rotating environment at temperatures from -50°C to +80°C.

Compacted varieties of crane wire rope provide increased fatigue resistance, strength, stability, and abrasion resistance. Often considered thestrongest wire ropeon the market, these types of wire rope are perfect for mining, industrial, construction, logging, and oilfield applications.

Other rotation resistant varieties come in 19×7 and 8×19 classes with an IWRC; for more detailed information, view thewire rope strength chartand select Wire Rope > Crane.

Finally, in addition to customized lengths and types of wire rope, a qualified rigging equipment provider can also supply pre-fabricatedwire rope slings. These slings are outfitted with eyes or sockets that affix the load to a lifting device. Wire rope slings come in dozens of orientations, sizes, and diameters, allowing for ultimate customization when outfitting your rigging operation. Check out the catalog or connect with a rigging equipment professional for guidance and to place your custom order

The professionals atSouthwestWire Rope have been serving the needs of the rigging, overhead lifting, and securement industries with an unwavering dedication to quality and excellence since 1966. If you are in the market for industry-leading lifting gear, or need your system inspected by a certified inspector, turn to the pros at Southwest Wire Rope. Our experienced team can provide insights and recommendations for the type of wire rope, end fittings, hardware, and operational procedures that best suit your facilities and equipment. We look forward to answering your questions and forming a lasting partnership. For more information, browse ourservice offeringand get in touch.

The lifting industry is not just about machine strength. Success in this business also requires precision, planning, endurance, poise, and training. In a highly competitive market that faces increasing pressures on a monthly basis, only the fittest lifting operations will continue to thrive in changing economic headwinds.

In addition to the competence and experience of your crew, your equipment is the largest differentiator between your lifting operation and the competition. Investing in material that is built to stand the test of time by aleading supplierwith an illustrious reputation will help ensure your machinery runs smoothly. In short, you need the best andstrongest assetsin order to thrive in the lifting business. Here are some of the most important components that will help you achieve that goal.

Cut to precision lengths in dozens of diameters, customizedwire ropecan help bring your operation to the next level. For more than 50 years, the team at Southwest has been helping the industry’s biggest players outfit their facilities with the best wire rope in the business. Our technicians can work alongside you to help determine the optimal thickness and orientation for your operation.

Not all chains are created equal. Every chain is tested to ensure it lives up to the Southwest legacy. Our team is familiar with every major type of chain configuration and linkage, so we can help you secure heavy loads and maximize your lifting potential while keeping your crew safe.

Synthetic round and synthetic web slings are the crucial components that keep your operation tightly bonded while remaining fluid and flexible. With various colors, lengths, and strengths available, the possibilities are quite literally endless.

When it comes to lifting gear, every sling, strap, link, wire rope strand, and piece of hardware is vital to the overall success of the operation. Investing in customized below-the-hook products that are expertly fitted to your unique needs and capacity will help make your facility safer and your equipment more effective.

The professionals atSouthwesthave been serving the needs of the rigging and lifting industries with an unwavering dedication to quality and excellence for years. If you are in the market for industry-leading lifting gear, or need your system inspected by a certified inspector, turn to the pros at Southwest Wire Rope. We look forward to answering your questions and forming a lasting partnership. For more information, browse ourservice offeringand get in touch.

In the rigging and lifting industries, proof tests are regularly performed to ensure that the equipment to be used can withstand the load it was manufactured to handle. These tests are performed for several reasons – specification requirement, manufacturer’s recommendation, and customer request are the most common.

As mentioned, we perform proof tests for a variety of reasons.One such test commonly performed in the business is aproof load test. A heavy-duty undertaking, a proof load test unveils the true strength of a piece of rigging or lifting gear. Here’s everything you need to know about this specific type of test, as well as how to keep your crew safe during one.

A proof load test is just what it sounds like: it proves whether a piece of rigging equipment can bear the load it is designed to. The test is administered in a controlled, measured fashion with a particular multiple of the maximum designed load (generally 1.1 to 1.5 times) and a specified length of time. After the test is completed, the operator will issue a certification confirming the workable load of the wire rope or other rigging component in question.

Whether the rig is overdue for a full inspection, the newly minted wire rope is being put to the test, or older equipment is being evaluated to determine if it is still fit for use, a proof load test is an immensely valuable tool. Every rigging component in the operation should be tested regularly, and a proof load test is one of the most complete and strenuous methods for doing so. Testing also helps keep the rigging equipment and the business as a whole within the boundaries of the OSHA, Department of Labor, and manufacturers’ codes that govern the industry.

The best way to keep your employees safe during a proof load test is to entrust the entire ordeal totrained professionals. Proof load tests are incredibly dangerous if not done with the proper equipment and control measures, as breakage can occur.

AtSouthwest Wire Rope, we provide proof load testing and destructive (break) testing of various lifting devices up to 1.7 million lbs. Proof load testing can be performed using specialized rigging and custom built test jigs that replicate the ultimate field installation of complex and highly engineered products. As you can imagine, this specially designed equipment is operated by industry veterans. By outsourcing the tests to an industry partner like Southwest, you can keep your crew out of harm’s way.

In reality, the advent of performing the test and verifying the strength of the equipment is also keeping your crew safe. Using wire rope or lifting gear until failure is a dangerous proposition and never recommended. Instead, get your equipment certified with a proof load test and gain the peace of mind your professionals deserve.

Don’t leave the safety of your equipment to chance. Partnering with a full-service provider who can offer in-depth product knowledge and inspection services will save you hours of confusion and stress when it comes to meeting code – all while maintaining the safety of your crew.

The professionals atSouthwesthave been serving the needs of the rigging and lifting industries with an unwavering dedication to quality and excellence for years. If you are in the market for leading rigging and lifting gear, need your system tested, or are simply looking for an expert opinion, turn to the pros at Southwest Wire Rope. We look forward to answering your questions and forming a lasting partnership. For more information, browse ourservice offeringand get in touch.

Lifting hundreds of tons of material on a daily basis requires a lot: high-quality gear, a competent and well-trained team, efficient systems, and a drive to succeed.

Due to the nature of the industry, the regulators at OSHA and other regulatory bodiesalsorequire a lot. In the lifting space, safety always comes first. Meeting the codes that govern the operation of your plant or rig are in your best interest…but this can also be a time-consuming and difficult task.

In order to stay in business and run at maximum capacity, your lifting gear needs to be meeting or exceeding code at all times. Here are some tips for handling this simply and effectively – so you can focus on getting things done.

When it comes to lifting gear, one faulty sling, strap, link, wire rope strand, or other piece of hardware can put the entire operation in jeopardy. Investing in equipment that isand is backed by the quality and reputation of awill help ensure your machinery runs smoothly. Codes were developed in the first place to protect your crew from dangerous breakage, equipment wear, and malfunctions, so starting with the best materials is the most effective way to ensure you’re always in line with recent codes.

A destructive or “break” test measures the tensile strength of wire rope by using magnetic and hydraulic arms to pull opposite ends of the rope apart. The test continues until the wire strands begin to fail, and eventually, the wire rope gives out. This is an extremely loud and dangerous endeavor – a break test should never be conducted without the proper equipment and certifications. Work with an industry provider who can conduct a wire rope break test usingin a safe and controlled setting. The results of this test will be printed on a load testing certification, which will help you satisfy regulations.

When it comes to your health, you trust the expert opinions of medical professionals to give you a diagnostic update after performing the relevant tests. In the lifting industry, on-site inspection services serve the same purpose for determining the health and safety of your operations.

Working with a provider who offersservices will keep your lifting gear in check. A qualified inspector will issue reports and grades on the strength and condition of your lifting gear, so you have a clear idea which elements need replacing. Regulators mandate these inspections as well, so scheduling the inspection in and of itself is necessary to meet code.

Every rigging and lifting operation is required to furnish and maintain a comprehensive set of safety procedures that regulate the facility, its equipment, and the personnel involved. If your team has grown, you have brought new equipment into service, or your operational procedures have changed, your safety protocols need to be updated to reflect this. In addition to updated manuals and emergency procedures, educating your staff on the fulfillment of these duties is vital. An incomplete set of protocols or an untrained staff is grounds for immediate shutdown, so consult with a lifting industry provider for guidance on development or updating of your plans.

Keeping your lifting gear at max capacity while satisfying the regulations of OSHA and other regulatory bodies is not something you should pursue alone. Partnering with a full-service provider who can offer in-depth product knowledge and inspection services will save you hours of confusion and stress when it comes to meeting code.

The professionals athave been serving the needs of the rigging and lifting industries with an unwavering dedication to quality and excellence for years. If you are in the market for leading rigging and lifting gear, need your system tested, or are simply looking for an expert opinion, turn to the pros at Southwest Wire Rope. We look forward to answering your questions and forming a lasting partnership. For more information, browse ourand get in touch.

Today’s rigging operations are expected to perform at their best around the clock. With demand surging andenormous growthforecasted for the industry, the main concerns are often lift capacity, output, and production time. However, when heavy machinery and powerful devices are involved, safety always comes first.

At the core of any reputable rigging operation is a dedication to the safety and security of its crew. At the end of the day, your people will determine the performance of your rig, so you need to protect them.

Rigging equipment is complex and advanced, but it still requires qualified professionals to run at its best. Your team members are your most important asset,